package com.company.L_4_1;

/**
 * Created by vilen on 2015/3/28.
 */
public class L_4_1 {
    public static void main(String[] args) {
            String h = "hello";
            ClassUtil_2.printMessage(h);


        Integer i = 0;
        ClassUtil_2.printMessage(i);
        System.out.println("================ClassUtil_3=============");
        ClassUtil_3.printMessage(h);
    }

}

